What does pregnancy biochemistry mean?

Biochemical pregnancy is also called biochemical pregnancy. To put it simply, it is an early miscarriage that occurs within five weeks of pregnancy. We only know that seven days after the sperm and egg are combined, human chorionic gonadotropin will be secreted. After another week, the early pregnancy test paper can be used for testing. After the fertilized egg is formed, it must return to the uterus to implant. If it does not return to the uterus to implant, it is called biochemical pregnancy, and miscarriage will occur at this time.

Introduction Biochemical pregnancy: refers to early miscarriage occurring within 5 weeks of pregnancy. Elevated HCG can be detected in the blood, greater than 25mlU/mL or the urine pregnancy test is positive, but no gestational sac can be seen on ultrasound examination, indicating that the fertilized egg has failed to implant. It is also called "subclinical miscarriage." [1] Sisters who are familiar with early pregnancy test strips, please note that under normal circumstances, a weak positive result can be detected 12 days after ovulation. The following manifestations are: for some JMs, the color of the test strip darkens every other day, and for others, it darkens significantly every day. If there is no darkening trend for more than 3 consecutive days, the embryo usually has a problem. In this case, the embryo itself is of poor quality, or the fertilized egg combination is an occasional chromosomal mutation, or it is a natural survival of the fittest. This is more common for some women when they are undergoing IVF. However, most women do not go to the hospital for examination and do not take it seriously, so they ignore it as delayed menstruation. In fact, it is already a miscarriage. Women of childbearing age should not panic if they encounter such a situation. This is the result of nature's elimination and generally will not affect the next pregnancy. If this happens multiple times, you should go to the hospital for further examination.

What are the main causes of biochemical abortion? Factors that affect the implantation of the fertilized egg: 1. The fertilized egg itself is defective; (check the chromosomes of both parties) 2. Poor ovarian corpus luteum function, insufficient progesterone secretion, and endometrial abnormalities affect the implantation of the fertilized egg; (check six hormone items) 3. Uterine factors: uterine hypoplasia, submucosal uterine fibroids, endometrial polyps, intrauterine adhesions, endometrial tuberculosis, etc. affect the implantation of the fertilized egg; (hysteroscopy) 4. Immune factors: Research on immune factors in recent years has shown that there are two immune conditions that affect conception. a Alloimmunity: sperm, seminal plasma or fertilized egg are antigenic substances. After being absorbed by the vaginal and uterine epithelium, they produce antibody substances through immune reaction, which prevents sperm and egg from combining or fertilized egg from implanting; b Autoimmunity: It is believed that there are zona pellucida autoantibodies in the serum of infertile women, which react with the zona pellucida to prevent sperm from penetrating the egg, thus preventing fertilization; (blood test to check immune antibodies and blocking antibodies)